Abstract:
A robot system and a control method thereof in which, when a robot is located in a docking region, the robot calculates a distance by emitting infrared rays and detecting ultrasonic waves oscillated from a charging station, measures a distance from the charging station and performs docking with charging station. The distance between the robot and the charging station is precisely measured, thereby performing smooth and correct docking of the robot with the charging station. Further, the robot emits infrared rays only while performing docking with the charging station and thus reduces power consumption required for infrared ray emission, and wakes up a circuit in the charging station based on the infrared rays emitted from the robot and thus reduces power consumption of the charging station.
Abstract:
A robot cleaner which does not stop to change a traveling direction thereof, and a control method thereof includes setting a territory about which cleaning will be performed based on position data acquired during traveling about a cleaning area, predetermining a cleaning path to clean the territory about which cleaning will be performed, and if the cleaning path includes a zigzag traveling path, changing the traveling direction of the robot cleaner by executing curved traveling of the robot cleaner during traveling along the zigzag traveling path, thus decreasing the time required to clean an area during a change of the traveling direction of the robot cleaner.
Abstract:
A scanner module and an image scanning apparatus employ an illuminator that includes at least one light emitting diode, a light guide to change the direction of the light from the light emitting diode, and a light source holder to which the light emitting diode is mounted, the light source holder being positioned in relation to the light guide such that the light source holder covers an incidence face of the light guide, on which the light from the light source is incident, the surface of light source holder facing the incidence face reflecting light incident thereupon. The reflection of light by the light source holder reduces the possibility of leakage of light, and can enhance luminous intensity of light of the illuminator.
Abstract:
A scanner module and an image scanning apparatus employ an illuminator that includes at least one light emitting diode, a light guide to change the direction of the light from the light emitting diode, and a light source holder to which the light emitting diode is mounted, the light source holder being positioned in relation to the light guide such that the light source holder covers an incidence face of the light guide, on which the light from the light source is incident, the surface of light source holder facing the incidence face reflecting light incident thereupon. The reflection of light by the light source holder reduces the possibility of leakage of light, and can enhance luminous intensity of light of the illuminator.
Abstract:
Disclosed are an apparatus and a method for providing an API for sharing contents which provides the API including a function capable of sharing contents during a video call or video conference in a platform including an open web service gateway by using functions provided from the open web service gateway. The apparatus for providing an API for sharing contents during video communication in a platform including an open web service gateway includes: a video communication control unit configured to acquire connection state information of terminals receiving a video communication request; and a contents sharing control unit configured to receive the connection state information of the terminals from the video communication control unit and process a contents sharing request.
Abstract:
A scanner module and an image scanning apparatus employ an illuminator that includes at least one light emitting diode, a light guide to change the direction of the light from the light emitting diode, and a light source holder to which the light emitting diode is mounted, the light source holder being positioned in relation to the light guide such that the light source holder covers an incidence face of the light guide, on which the light from the light source is incident, the surface of light source holder facing the incidence face reflecting light incident thereupon. The reflection of light by the light source holder reduces the possibility of leakage of light, and can enhance luminous intensity of light of the illuminator.
Abstract:
The present invention relates to a welding helmet including a wireless auto light shield part and a controlling method thereof. More particularly, the present invention relates to a welding helmet including a wireless auto light shield part capable of improving convenience of a welding operation, protecting eyes of a worker from direct light during welding operation, and preventing frost from being formed on the viewing window by shielding or opening a viewing window through elevation of a shield glass while automatically driving the light shield part in a wireless scheme by operation of a torch switch, and a method of controlling the same.
Abstract:
A semiconductor device fabrication method includes sequentially forming a hard mask layer and a sacrificial layer on a substrate, forming an upper mandrel which includes first to third upper sub-mandrels on the sacrificial layer, the first to third upper sub-mandrels extending in a first direction and being spaced apart from each other in a second direction, a width of the first upper sub-mandrel being smaller than widths of the second and third upper sub-mandrels, forming first spacers on sidewalls of each of the upper sub-mandrels, removing the upper mandrel, etching the sacrificial layer using the first spacers as etching masks to form a lower mandrel that includes a plurality of sub-mandrels, forming second spacers on sidewalls of the lower sub-mandrels, removing the lower mandrel, patterning the hard mask layer and the substrate using the second spacers as etching masks to form first to tenth fins which extend alongside each other in the first direction and are spaced apart from each other in the second direction, removing the first, second, fifth and eighth fins, and forming a first gate electrode that intersects the third, fourth, sixth and seventh fins, and a second gate electrode that intersects the sixth, seventh, ninth and tenth fins while not intersecting the third and fourth fins.
Abstract:
The invention provides a method for treating an inflammatory skin disease in a subject comprising administering to the subject an amount of composition comprising willow tree extract as an active ingredient effective to treat the inflammatory skin disease.
Abstract:
Example embodiments are directed to an analog-to-digital converter (ADC) that controls a gain by changing a system parameter, an image sensor including the ADC and a method of operating the ADC. The ADC includes a sigma-delta modulator which receives an input signal and a clock signal and sigma-delta modulates the input signal into a digital output signal based on the clock signal and an accumulation unit which accumulates the digital output signal at each cycle of the clock signal according to an analog-to-digital conversion time and outputs an accumulation result. A system parameter is varied during the analog-to-digital conversion time to control a gain of the ADC. The method of operating the analog-to-digital converter includes sigma-delta modulating an input signal into a digital output signal in response to a clock signal input to the ADC; and accumulating the digital output signal at each cycle of the input clock signal according to an analog-to-digital conversion time and outputting an accumulation result.